According to the Laffer curve, which of the following statements is true?
a. A sufficiently high tax rate encourages productivity.
b. Cutting taxes will suppress the economy.
c. If the government cuts marginal tax rates, revenue goes down.
d. If the government raises marginal tax rates, revenue goes up.
d
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Analysis of covariance (ANCOVA) is used in the same way as analysis of variance (ANOVA) EXCEPT that
A) in ANCOVA, the effects of a powerful variable are statistically removed from the scores of the dependent measure as part of the analysis. B) ANCOVA must be done by hand. C) ANCOVA cannot be used with score data. D) in ANCOVA, the effects of a powerful variable are statistically removed from the scores of the dependent measure after the analysis.
A __________ subjects factorial research design is a research design in which the independent variables are not all the same type
a. between b. within c. mixed d. facet